Home / 120,424.42-166,185.71-66,712.92

Finding the Fourth Proportional to 120,424.42, 166,185.71 and 66,712.92

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Solution

The fourth proportional to 120,424.42, 166,185.71 and 66,712.92 is: 92,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,424.42 : 166,185.71 = 66,712.92 : x
  2. Step 2: Convert to fraction form
    120,424.42/166,185.71 = 66,712.92/x
  3. Step 3: Cross multiply
    120,424.42x = 166,185.71 × 66,712.92
  4. Step 4: Simplify right side
    120,424.42x = 11,086,733,976.37
  5. Step 5: Solve for x
    x = 11,086,733,976.37/120,424.42
  6. Step 6: Final answer
    x = 92,063.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.